Spontaneous CP violation and partially broken modular flavor symmetries

Spontaneous CP violation and partially broken modular flavor symmetries

Abstract We study the realization of spontaneous CP violation through moduli stabilization. In modular flavor models, the source of CP violation is the vacuum expectation values of the complex structure moduli of toroidal compact space. We demonstrate that the combined effects of Type IIB flux compa...

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Bibliographic Details
Main Authors: Tetsutaro Higaki, Tatsuo Kobayashi, Kaito Nasu, Hajime Otsuka
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:Journal of High Energy Physics
Subjects:
CP Violation
Flavour Symmetries
Flux Compactifications
Supergravity Models
Online Access:https://doi.org/10.1007/JHEP09(2024)024
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Summary:Abstract We study the realization of spontaneous CP violation through moduli stabilization. In modular flavor models, the source of CP violation is the vacuum expectation values of the complex structure moduli of toroidal compact space. We demonstrate that the combined effects of Type IIB flux compactifications with modular invariant couplings between the moduli and matter fields can induce spontaneous CP violation without or with supersymmetry breaking. Furthermore, some general properties of CP and modular invariant scalar potentials are presented. It is found that certain modifications or partial breakings of modular symmetry are useful in generating spontaneous CP violation.
ISSN:1029-8479

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